MESON Chess Problem Database
Problem Display
PID: 261163 (1R5K/p6B/1n3p1P/R1NN1r2/p1k4r/P3P3/bP4Q1/8 w - - 0 1)
Jaeger, Peter R
1st Comm., Neue Zurcher Zeitung, 1990
#2
11 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qe4#
- 1...Rh2
- 2.Qe4#
- 1...Rh3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rhh5
- 2.Qe4#
- 1...Rxh6
- 2.Qe4#
- 1...Rf1
- 2.Bd3#
- 1...Rf2
- 2.Bd3#
- 1...Rf4
- 2.Bd3#
- 1...Rxd5
- 2.Qc2#
- 1...Re5
- 2.Bd3#
- 1...Rg5
- 2.Bd3#
- 1...Rfh5
- 2.Bd3#
- 1...Sxd5
- 2.Qe2#
- 1...Sd7
- 2.Rb4#
- 1...Sa8
- 2.Rb4#
- 1...Sc8
- 2.Rb4#
- 1...a6
- 2.Sxb6#
- 1...Rh1
- Tries
- 1.Sb4?
- threat
- 2.Qc2#
- 2.Qe2#
- 1...Rxc5
- 2.Qc2#
- 1...Rh2
- 2.Qe4#
- 1...Rd4
- 2.Qc2#
- 1...Rf2
- 2.Bd3#
- 1...Rd5
- 2.Qc2#
- 1...Bb3
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Bb1!
- threat
- 1.Sxf6?
- threat
- 2.Qc2#
- 2.Qe2#
- 1...Rxc5
- 2.Qc2#
- 1...Rxf6
- 2.Bd3#
- 1...Rh2
- 2.Qe4#
- 1...Rd4
- 2.Qc2#
- 1...Rf2
- 2.Bd3#
- 1...Rd5
- 2.Qc2#
- 1...Bb3
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Bb1!
- threat
- 1.Sc7?
- threat
- 2.Qc2#
- 2.Qe2#
- 1...Rxc5
- 2.Qc2#
- 1...Rh2
- 2.Qe4#
- 1...Rd4
- 2.Qc2#
- 1...Rf2
- 2.Bd3#
- 1...Rd5
- 2.Qc2#
- 1...Bb3
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Bb1!
- threat
- 1.Se7?
- threat
- 2.Qc2#
- 2.Qe2#
- 1...Rxc5
- 2.Qc2#
- 1...Rh2
- 2.Qe4#
- 1...Rd4
- 2.Qc2#
- 1...Rf2
- 2.Bd3#
- 1...Rd5
- 2.Qc2#
- 1...Bb3
- 2.Qe2#
- 1...Sd5
- 2.Qe2#
- 1...Bb1!
- threat
- 1.Bg8?
- threat
- 2.Sxb6#
- 2.Qc2#
- 2.Qe2#
- 1...Rxd5
- 2.Qf1#
- 2.Qc2#
- 2.Qe2#
- 1...Sxd5
- 2.Rb4#
- 2.Qc2#
- 2.Qe2#
- 1...Bb1
- 2.Sxb6#
- 1...Rh2
- 2.Sxb6#
- 2.Qe4#
- 1...Rd4
- 2.Sxb6#
- 2.Qc2#
- 1...Rf2
- 2.Sxb6#
- 1...Bb3
- 2.Sxb6#
- 2.Qe2#
- 1...Sd7
- 2.Sb6#
- 2.Rb4#
- 2.Qc2#
- 2.Qe2#
- 1...Sa8
- 2.Sb6#
- 2.Rb4#
- 2.Qc2#
- 2.Qe2#
- 1...Sc8
- 2.Sb6#
- 2.Rb4#
- 2.Qc2#
- 2.Qe2#
- 1...Rxh6+!
- threat
- 1.Rxb6?
- threat
- 2.Rb4#
- 1...axb6
- 2.Sxb6#
- 1...Re4
- 2.Qxe4#
- 1...Rf3!
- threat
- 1.Qd2?
- threat
- 2.Qd3#
- 1...Rxd5
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Rd4
- 2.Qxd4#
- 1...Bb1!
- threat
- 1.Sb4?
- Keys
- 1.Qg8!
- threat
- 2.Sxb6#
- 1...Rxd5
- 2.Bd3#
- 1...Sxd5
- 2.Rb4#
- 1...Sd7
- 2.Sb6#
- 2.Rb4#
- 1...Sa8
- 2.Sb6#
- 2.Rb4#
- 1...Sc8
- 2.Sb6#
- 2.Rb4#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 16
- Sets
- R(d);N_GUARD::QAR2(B)
- R(d);N_GUARD::QAR2(B),XR(d)
- R(d);N_GUARD,P_PINB(I),XP(H)::QAR2(B)
- R(e);OGATE::B(I)
- R(e);SBLOCK,XS(G)::QAR2(B)
- S(f);SBLOCK,XS(G)::QAB(B)
- S(f);OGATE::R1(J)
- P(h);N_GUARD::S(G),XS(f)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(e);XS(F)::QAR2(B)
- R(d);N_GUARD::QAR2(B)
- R(d);::QAR2(B)
- R(e);OGATE::B(I)
- R(e);::QAR2(B)
- B(a);::QAB(B)
- S(f);::QAB(B)
- Refutation
- B(a);
- Try
- S(G);XP(g)
- Threat
- DUALS(2)
- Vars
- R(e);XS(F)::QAR2(B)
- R(e);OGATE,XS(G)::B(I)
- R(d);N_GUARD::QAR2(B)
- R(d);::QAR2(B)
- R(e);OGATE::B(I)
- R(e);::QAR2(B)
- B(a);::QAB(B)
- S(f);::QAB(B)
- Refutation
- B(a);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(e);XS(F)::QAR2(B)
- R(d);N_GUARD::QAR2(B)
- R(d);::QAR2(B)
- R(e);OGATE::B(I)
- R(e);::QAR2(B)
- B(a);::QAB(B)
- S(f);::QAB(B)
- Refutation
- B(a);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(e);XS(F)::QAR2(B)
- R(d);N_GUARD::QAR2(B)
- R(d);::QAR2(B)
- R(e);OGATE::B(I)
- R(e);::QAR2(B)
- B(a);::QAB(B)
- S(f);::QAB(B)
- Refutation
- B(a);
- Try
- B(I);P_SPINP(H)
- Threat
- DUALS(3)
- Vars
- B(a);::B(I)+S(G),DCHECK,XS(f)
- R(e);::B(I)+S(G),DCHECK,XS(f)
- Refutation
- R(d);CHECK,XP(H)
- Try
- R(J);XS(f)
- Threat
- R1(J)
- Vars
- P(h);XR(J)::S(G),XP(h)
- R(d);N_GUARD::QAR2(B),XR(d)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(d);N_GUARD::QAR1(B),XR(d)
- Refutation
- B(a);
- Try
- Actual
- Q(B);
- Threat
- QAB(B)+S(G),DCHECK,XS(f)
- Vars
- R(e);OGATE,P_SPINR(e),XS(G)::B(I)
- S(f);OGATE,P_SPINS(f),XS(G)::R1(J)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).